Register Now

Login

Lost Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

222-9+11+12:2*14+14 = ? ( )

Toán Lớp 6: 4567 + (1234 – 4567) -4 (3567 – 214) – 3567; (-2017) – (28 – 2017); – (269 – 357) + (269 – 357);

Toán Lớp 6: 4567 + (1234 – 4567) -4
(3567 – 214) – 3567;
(-2017) – (28 – 2017);
– (269 – 357) + (269 – 357);

Comments ( 2 )

  1. Lời giải và giải thích chi tiết:
    4567 + ( 1234 – 4567 ) – 4
    = 4567 + 1234 – 4567 – 4
    = ( 4567 – 4567 ) + ( 1234 – 4 )
    = 1230
    (3567 – 214) – 3567 
    = 3567 – 214 – 3567
    = ( 3567 – 3567 ) – 214
    = -214
    (-2017) – (28 – 2017)
    – 2017 – 28 + 2017
    = ( -2017 + 2017 ) – 28
    = -28
    – (269 – 357) + (269 – 357)
    = -269 + 357 + 269 – 357
    = ( -269 + 269 ) + ( 357 – 357 )
    = 0

  2. 4567 + (1234 – 4567) -4
    =4567 + 1234 – 4567-4
    =(4567 – 4567)+( 1234 -4)
    =0+1230
    =1230
                                                                                      
    (3567 – 214) – 3567
    =3567 – 214 – 3567
    =(3567 – 3567)– 214
    =0-214
    =-214
                                                                                      
    (-2017) – (28 – 2017)
    =-2017-28+2017
    =(2017-2017)-28
    =0-28
    =-28
                                                                                      
    – (269 – 357) + (269 – 357)
    = (269 – 357) – (269 – 357)
    =0
     

Leave a reply

222-9+11+12:2*14+14 = ? ( )